This is a Fukuro obi
with fashionable flowing curvy lines pattern, which is woven with foil threads against marble-like base design.
Textile is rather crisp silk.
Both ends are roughly closed, not by a professional maybe.
The part of Tare end where should be folded inward and tailored is not folded, perhaps to add extra length.
(refer to the main photo)
Stains and snags of Maegara will not show if you start wrapping the obi from your right tummy to left(Rotate obi counterclockwise).
It also has rather noticeable folding lines.
Please see photos for details.
It can continue to be worn without any problems!